Detachable connection of rotationally symmetrical components

Abstract

A connection of rotationally symmetrical components, in which minimal overturning torques and consequently minimal deformations of the supporting components are generated by generating the smallest, theoretically possible lever arm, on which the forces of the connection to be transmitted act. As a result, a nonpositive and positive-locking connection is obtained, in which the bolts no longer represent the dominantly loaded component. The maintenance and testing of the bolts is considerably reduced in all connections. Optimal flux of forces through the components close to the line of force application is achieved in the case of the tensioning of large rolling bearings. The requirements in terms of concentration of the contact pressure of the bearing tensioning in the vicinity of the line of force application are satisfied. In the case of a flange connection, optimal conditions are provided for tightness, besides a more economical manufacture, compared with the prior-art designs. Only extremely short bolts of a significantly smaller diameter are needed. A one-part sleeve surrounds two collars with tubular or cylindrical attachment provided on it. Wedge-shaped tensioning elements 2 are pulled in in the direction of the bolt axis by means of tension bolts between the inner, conical contact surfaces of the sleeve and the flat surfaces of the collars. The collars are tensioned with the sleeve via the wedge-shaped tensioning elements. The bolts are loaded only with a portion of the axial forces occurring.

Claims

1. A detachable connection of rotationally symmetrical components for a nonpositive and positive-locking connection of the rotationally symmetrical components, comprising:

two collars including a collar of one tubular or cylindrical attachment and another collar of a second tubular or cylindrical attachment said collars each having a flat surface;

a one-part sleeve surrounding said two collars, said sleeve having an inside surface defining two conical contact surfaces, each of said contact surfaces being located opposite one said flat surface;

a plurality of wedge-shaped tensioning elements, each of said wedge-shaped tensioning elements being disposed between one of said conical contact surfaces and a flat surface of one of said collars; and

tension bolts, each of said tensioning bolts for tensioning one of said wedge-shaped tensioning elements between one of said collars and said sleeve.

2. A detachable connection in accordance with claim 1, wherein said sleeve includes a hole for each of said tension bolts, each said hole having a screw axis angle with respect to a radial direction of the rotationally symmetrical components which is half a wedge angle of said tensioning elements, and a contact surface of said tensioning elements on said collar or on a component to be tensioned is located in an immediate vicinity of a load-bearing connection structure.

3. A detachable connection in accordance with claim 1, wherein said collars are directed inwardly with respect to a radial direction of the rotationally symmetrical components, and the detachable connection of the components to be tensioned is also arranged on an inside of the rotationally symmetrical components.

4. A detachable connection of rotationally symmetrical components, for the nonpositive and positive-locking connection of rotationally symmetrical components, the detachable connection comprising:

a collar provided on one of the components to be connected, said collar having a flat surface;

a sleeve provided on another of the components to be connected, a part of said sleeve surrounding said collar and having an inner, conical contact surface;

a plurality of wedge-shaped tensioning elements each of said wedge-shaped tensioning elements being disposed between said contact surface and the said flat surface between one of said collar and said sleeve and between said component and said sleeve, said flat surface being located opposite said contact surface; and

tension bolts disposed between said sleeve and one of said collar and a component to be tensioned and the said sleeve.

5. A detachable connection in accordance with claim 4, wherein said sleeve includes a hole for each of said tension bolts, each said hole having a screw axis angle with respect to a radial direction of the rotationally symmetrical components which is half a wedge angle of said tensioning elements, and a contact surface of said tensioning elements on said collar or on a component to be tensioned is located in an immediate vicinity of a load-bearing connection structure.

6. A detachable connection in accordance with claim 4, wherein said collars are directed inwardly with respect to a radial direction of the rotationally symmetrical components, and the detachable connection of the components to be tensioned is also arranged on an inside of the rotationally symmetrical components.

7. A connection comprising:

a first part with a fastening surface and a mating surface;

a second part with a slanted surface arranged at an angle to said fastening surface, said slanted surface being positioned opposite said fastening surface, said second part also being connected to another mating surface, said mating surface and said another mating surface being positioned adjacent each other;

a wedge element positioned between said fastening surface and said slanted surface;

tension means connected to said wedge element and said second part for applying force to said wedge element and forcing said slanted and said fastening surfaces apart, said force applied to said wedge element also forcing said mating and said another mating surfaces together.

8. A connection in accordance with claim 7, wherein:

said another mating surface is formed in one piece with said second part.

9. A connection in accordance with claim 7, wherein:

said another mating surface is arranged on a third part, with said third part being mechanically connected to said second part.

10. A connection in accordance with claim 9, wherein:

another fastening surface is arranged on said third part;

said second part includes another slanted surface arranged at another angle to said another fastening surface, said another slanted surface being positioned opposite said another fastening surface;

another wedge element positioned between said another fastening surface and said another slanted surface;

another tension means connected to said another wedge element and said second part for applying force to said another wedge element and forcing said another slanted and said another fastening surfaces apart, said force applied to said another wedge element also forcing said mating and said another mating surfaces together.

11. A connection in accordance with claim 7, wherein:

said fastening surface and said wedge element are annular.

12. A connection in accordance with claim 11, wherein:

said first and second parts are rotationally symmetrical;

said fastening surface is radial;

said slanted surface is conical;

said fastening surface and said slanted surface define a wedge angle;

said tension means includes a plurality of threaded bolts engaging with threaded holes defined by said wedge element, said threaded holes having a screw axis at a screw angle with respect to a radial direction of said rotationally symmetrical parts, said screw angle being half said wedge angle;

a contact surface of said wedge element on said fastening surface is located in an immediate vicinity of a load-bearing connection structure.

13. A detachable connection in accordance with claim 7, wherein:

said first and second parts are rotationally symmetrical;

said tensioning means forces said wedge element in a direction radially outward of said second part;

said tensioning means is operated by a user from a radially outer side of said second part.

14. A detachable connection in accordance with claim 7, wherein:

said first and second parts are rotationally symmetrical;

said tensioning means forces said wedge element in a direction radially inward of said second part;

said tensioning means is operated by a user from a radially inner side of said second part.